I have this pseudo-functional (but mostly for aesthetics) balcony just outside my mountain-side shelter:

It gives me a nice view outside, and I can peer over the edge to the ground far below (30+ blocks) to see what baddies are down there before I venture out.

There is an above overhang that extends a couple of blocks past the balcony edge (not shown), so no monsters can fall down onto it from above. What I'm not sure about is whether it's Endermen-proof. I've noticed them appearing on occassion on the mountain to the right. I've also tussled with a few of them underground and know they have a penchant for teleporting behind you when they get cross. However, in my experience they seem to have trouble moving/teleporting through passages that narrow in height to less than 3 blocks. The narrowest height of my balcony opening is 2 1/2 blocks, where the slabs are in the picture.

If I were on my balcony, and an Enderman caught sight of me, would he be able to pop on over to my balcony uninvited? Or would he not be able to fit through? Since I don't really need the balcony, I could probably glass-block it in. But I kind of like it as-is. It amuses me.

I'm not certain of this, but couldn't the Endermen teleport into the part of the building you're standing on in this screenshot since it is 3 blocks high?
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Kevin YFeb 6 '12 at 21:34

Are you asking if they will wander in on their own or if you anger them? Anger, if the can stand where you are they will just appear there.. as for wandering in I think you are ok.
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JamesFeb 6 '12 at 21:54

So, the size of openings between you and them don't matter? I mistakenly thought this because they didn't teleport when I managed to get on the opposite side of a two-block high opening while fighting them. I guess the real reason they didn't teleport was because I backed through the opening and was looking right at them the whole time. Is there a limit to how far they can move in one teleport?
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gnoviceFeb 6 '12 at 22:05

4

@gnovice I think you should ask this follow-up question separately.
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k0pernikusFeb 6 '12 at 22:43